Note 10 - Property, Plant and Equipment (Details) - Property, Plant and Equipment (USD $) In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Property, Plant and Equipment [Line Items]
Property plant and equipment, gross	$ 112,230	$ 16,311
Less: accumulated depreciation	(5,792)	(4,559)
	106,438	11,752
PV Solar Systems [Member]
Property, Plant and Equipment [Line Items]
Property plant and equipment, gross	110,553	14,852
Plant and Machinery [Member]
Property, Plant and Equipment [Line Items]
Property plant and equipment, gross	33	33
Furniture and Fixtures [Member]
Property, Plant and Equipment [Line Items]
Property plant and equipment, gross	269	269
Automobiles [Member]
Property, Plant and Equipment [Line Items]
Property plant and equipment, gross	75
Computer Equipment [Member]
Property, Plant and Equipment [Line Items]
Property plant and equipment, gross	1,296	1,153
Leasehold Improvements [Member]
Property, Plant and Equipment [Line Items]
Property plant and equipment, gross	$ 4	$ 4